.walk-hero{background:var(--bench);color:var(--bench-text);border-radius:var(--radius-l);box-shadow:var(--shadow-3);gap:16px;margin:0;padding:26px 24px 22px;display:grid}.walk-code{font-family:var(--font-mono);border-bottom:1px solid var(--bench-line);padding-bottom:14px;font-size:14px;line-height:1.7}.walk-line{color:var(--bench-muted);transition:background var(--dur-2) var(--ease), color var(--dur-2) var(--ease);border-left:3px solid #0000;border-radius:2px;padding:0 10px}.walk-line.indent{padding-left:42px}.walk-line.is-on{border-left-color:var(--v-blue);color:var(--bench-text);background:#6ea8ff24}.walk-cells{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;display:grid}.walk-cell{flex-direction:column;align-items:center;gap:4px;display:flex}.walk-value{text-align:center;width:100%;font-family:var(--font-mono);border:1px solid var(--bench-grid-2);background:var(--bench-2);color:var(--bench-faint);transition:all var(--dur-2) var(--ease);border-radius:10px;padding:12px 0;font-size:clamp(18px,2.4vw,26px)}.walk-cell.is-done .walk-value{color:var(--bench-text)}.walk-cell.is-here .walk-value{border-color:var(--v-blue);color:#fff;background:#6ea8ff29}.walk-cell.is-best .walk-value{border-color:var(--v-lime);box-shadow:inset 0 0 0 1px var(--v-lime)}.walk-index{font-family:var(--font-mono);color:var(--bench-faint);font-size:11px}.walk-pointer-row{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;min-height:18px;margin-top:-10px;display:grid}.walk-pointer{text-align:center;font-family:var(--font-mono);color:var(--v-blue);font-size:12px}.walk-notebook{align-items:baseline;gap:14px;display:flex}.walk-label{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--lime);font-size:11px}.walk-best{font-family:var(--font-mono);color:#fff;border-radius:8px;padding:2px 10px;font-size:22px}.walk-best.is-changed{animation:trace-flash .9s var(--ease-out);background:#d4f56b24}.walk-text{color:var(--bench-text);min-height:1.5em;font-size:15px}.walk-controls{gap:8px;display:flex}.walk-btn{font:inherit;border:1px solid var(--bench-grid-2);background:var(--bench-2);min-height:36px;color:var(--bench-text);cursor:pointer;border-radius:999px;padding:6px 14px;font-size:13px}.walk-btn.is-quiet{background:0 0}.today{grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,2fr);gap:14px;margin:0 0 72px;display:grid}.today-loading{min-height:140px}.today-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);align-content:start;gap:6px;padding:18px 20px;display:grid}.today-label{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted);align-items:center;gap:6px;font-size:11.5px;display:inline-flex}.today-big{font-family:var(--font-display);letter-spacing:-.03em;font-size:32px;font-weight:800}.today-note{color:var(--muted);font-size:14px}.today-bar{background:var(--paper-3);border-radius:999px;height:8px;overflow:hidden}.today-bar span{background:var(--lime);border-radius:999px;height:100%;display:block}.today-queue{gap:4px;margin:0;padding:0;font-size:15px;list-style:none;display:grid}.today-queue li{justify-content:space-between;gap:10px;display:flex}.today-next{align-items:center;gap:6px;margin-top:6px;font-weight:600;display:inline-flex}.frame-strip{margin:0 0 72px}.frame-list{border-top:1px solid var(--ink);grid-template-columns:repeat(4,minmax(0,1fr));margin:0;padding:0;list-style:none;display:grid}.frame-list li{border-right:1px solid var(--line);padding:18px 18px 8px 0}.frame-list li+li{padding-left:18px}.frame-list li:last-child{border-right:none}.frame-num{font-family:var(--font-mono);color:var(--muted);font-size:12px}.frame-word{font-family:var(--font-display);letter-spacing:-.03em;margin:2px 0 8px;font-size:clamp(26px,3vw,36px);font-weight:800;display:block}.frame-list p{color:var(--muted);margin:0;font-size:15px}.course-stage{margin-bottom:64px}.course-stage .course-card{grid-template-columns:minmax(0,1fr)}.course-card-num{font-family:var(--font-display);letter-spacing:-.04em;color:#0000;-webkit-text-stroke:1.2px var(--ink);font-size:40px;font-weight:800}.course-card-title{font-family:var(--font-display);letter-spacing:-.02em;margin:6px 0 4px;font-size:23px;font-weight:800}.course-card-title a{color:var(--ink);text-decoration:none}.course-card-title a:hover{text-decoration:underline}.course-card-kicker{color:var(--muted);margin:0 0 10px;font-size:14.5px}.course-card-lessons{gap:4px;margin:0;padding-left:20px;font-size:14.5px;display:grid}.course-card-lessons li::marker{color:var(--faint);font-family:var(--font-mono);font-size:12px}.course-card-lessons li{padding-left:2px}.course-card-lessons li a{margin-right:6px}.course-card-lessons .lesson-dot{vertical-align:middle}.earn-chip{font-family:var(--font-mono);color:var(--ink);border:1px solid var(--line-2);background:var(--surface);border-radius:999px;align-items:center;gap:8px;min-height:32px;padding:4px 10px;font-size:12.5px;text-decoration:none;display:inline-flex}.earn-streak{color:var(--muted);align-items:center;gap:3px;display:inline-flex}.earn-streak.is-on{color:var(--p-amber)}@media (max-width:520px){.earn-xp{display:none}}.plist{border-top:1px solid var(--line);margin:8px 0 0;padding:0;list-style:none}.plist-row{border-bottom:1px solid var(--line);color:var(--text);grid-template-columns:76px minmax(0,1fr) auto auto;align-items:center;gap:14px;padding:12px 4px;text-decoration:none;display:grid}.plist-row:hover{background:var(--paper-2)}.plist-row .problem-diff{justify-self:start}.plist-main{min-width:0;display:grid}.plist-title{color:var(--ink);font-weight:600}.plist-meta{color:var(--muted);overflow-wrap:anywhere;font-size:13px}.plist-time{font-family:var(--font-mono);color:var(--muted);font-size:12px}.pstatus{text-align:right;min-width:78px;color:var(--muted);font-size:12.5px}.pstatus.is-due{color:var(--p-amber);font-weight:600}.pstatus.is-learning{color:var(--p-blue)}.pstatus.is-retired{color:var(--p-lime);font-weight:600}@media (max-width:620px){.plist-row{grid-template-columns:minmax(0,1fr) auto}.plist-row .problem-diff{grid-column:1}.plist-time{display:none}.pstatus{grid-area:1/2}}.practice-tabs{margin-bottom:24px;overflow-x:auto}.practice-section{margin-bottom:40px}.practice-section .section-title.small{align-items:center;gap:8px;margin-top:24px;display:flex}.practice-lede{max-width:46em;color:var(--ink-2);font-size:16px}.practice-foot{font-size:14px}.filters,.mixed-controls{flex-wrap:wrap;align-items:flex-end;gap:12px;margin-bottom:12px;display:flex}.filters label,.mixed-controls label{font-size:12.5px;font-family:var(--font-mono);color:var(--muted);text-transform:uppercase;letter-spacing:.05em;gap:4px;display:grid}.filters select,.mixed-controls select{font:inherit;font-family:var(--font-body);text-transform:none;letter-spacing:0;color:var(--text);border-radius:var(--radius-s);border:1px solid var(--line-2);background:var(--surface);max-width:280px;min-height:40px;padding:6px 10px;font-size:14.5px}.review-item{margin-bottom:24px}.mock-formats{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:16px;display:grid}.mock-format{text-align:left;font:inherit;border-radius:var(--radius-l);border:1px solid var(--line-2);background:var(--surface);color:var(--text);cursor:pointer;gap:6px;padding:18px;display:grid}.mock-format:hover{border-color:var(--ink)}.mock-format-name{font-family:var(--font-display);font-size:20px;font-weight:800}.mock-format-time{font-family:var(--font-mono);color:var(--muted);align-items:center;gap:4px;font-size:12.5px;display:inline-flex}.mock-format-text{color:var(--muted);font-size:14px}.mock-bar{z-index:5;border-radius:var(--radius);background:var(--ink);color:var(--paper);justify-content:space-between;gap:12px;padding:10px 16px;font-size:14px;display:flex;position:sticky;top:64px}.mock-bar.is-low .mock-clock{color:var(--v-amber)}.mock-bar.is-over .mock-clock{color:var(--v-coral)}.mock-clock{font-family:var(--font-mono)}.mock-summary{margin-top:20px}.mock-results{padding-left:20px}.mock-rubric{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;margin:12px 0;display:grid}.mock-rubric fieldset{border:1px solid var(--line-2);border-radius:var(--radius);flex-wrap:wrap;gap:6px;padding:10px 12px;display:flex}.mock-rubric legend{padding:0 4px;font-weight:600}.mock-rubric label{border-radius:var(--radius-s);border:1px solid var(--line-2);cursor:pointer;min-width:40px;min-height:40px;font-family:var(--font-mono);justify-content:center;align-items:center;display:inline-flex}.mock-rubric label.is-on{background:var(--ink);color:var(--paper)}.mock-rubric input{opacity:0;pointer-events:none;position:absolute}.mock-rubric label:focus-within{outline:2px solid var(--focus);outline-offset:2px}.crumbs{flex-wrap:wrap;gap:6px 18px;margin-bottom:8px;display:flex}.related{margin-top:40px}.pextras{gap:40px;margin-bottom:48px;display:grid}.pextras-level{grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);align-items:center;gap:24px;display:grid}.badges{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px;margin:0;padding:0;list-style:none;display:grid}.badge{border-radius:var(--radius);border:1px dashed var(--line-2);color:var(--faint);grid-template-columns:auto minmax(0,1fr);align-items:center;gap:2px 10px;padding:12px;display:grid}.badge.is-earned{border-style:solid;border-color:var(--p-lime);background:var(--lime-soft);color:var(--lime-ink)}.badge-name{color:inherit;font-weight:700}.badge.is-earned .badge-name{color:var(--ink)}.badge-text{color:var(--muted);grid-column:2;font-size:13px}.journal-dominant{background:var(--warn-soft);border-radius:var(--radius);padding:12px 14px;font-size:15px}.journal{gap:6px;margin:0;padding:0;list-style:none;display:grid}.journal li{border-radius:var(--radius);background:var(--paper-2);flex-wrap:wrap;align-items:center;gap:6px 12px;padding:8px 12px;font-size:14.5px;display:flex}.journal-date{font-family:var(--font-mono);color:var(--muted);font-size:12px}.journal-type{border:1px solid;border-radius:999px;padding:2px 8px;font-size:12px}.type-knowledge{color:var(--p-blue)}.type-procedure{color:var(--p-violet)}.type-careless{color:var(--p-coral)}.type-concept{color:var(--p-amber)}.journal-note{color:var(--text);flex-basis:100%}.journal-del{color:var(--muted);cursor:pointer;background:0 0;border:none;min-width:36px;min-height:36px;margin-left:auto}@media (max-width:900px){.today{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.today-card.is-wide{grid-column:1/-1}.frame-list{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.frame-list li:nth-child(2){border-right:none}.frame-list li:nth-child(3){padding-left:0}.pextras-level{grid-template-columns:minmax(0,1fr)}}@media (max-width:560px){.today,.frame-list{grid-template-columns:minmax(0,1fr)}.frame-list li,.frame-list li+li{border-right:none;border-bottom:1px solid var(--line);padding-left:0}.walk-hero{padding:18px 14px}.walk-line.indent{padding-left:26px}}.home .statement{font-size:clamp(40px,8.6cqi,104px);line-height:.95}